結果
| 問題 |
No.733 分身並列コーディング
|
| ユーザー |
 kitakitalily
|
| 提出日時 | 2019-10-21 13:11:08 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 227 ms / 1,500 ms |
| コード長 | 5,753 bytes |
| コンパイル時間 | 2,010 ms |
| コンパイル使用メモリ | 78,396 KB |
| 実行使用メモリ | 54,228 KB |
| 最終ジャッジ日時 | 2024-07-02 17:42:40 |
| 合計ジャッジ時間 | 9,348 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / judge5 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 46 |
ソースコード
import java.util.*;
import java.io.*;
public class Main {
static long mod = 1000000007;
static int INF = Integer.MAX_VALUE;
static int[] b;
static int sz;
static int[] sum;
public static void main(String[] args){
FastScanner scanner = new FastScanner();
int T = scanner.nextInt();
int n = scanner.nextInt();
int[] t = new int[n];
for(int i = 0; i < n; i++){
t[i] = scanner.nextInt();
}
//dp[i][j]:=問題の集合iをj人で解いた時、まだ解いていない問題の時間の合計の最小値
int[][] dp = new int[1<<n][20];
for(int i = 1; i < (1<<n); i++){
for(int j = 0; j < n; j++){
dp[i][j] = INF;
}
}
for(int i = 1; i < (1<<n); i++){
for(int j = 0; j < n; j++){
if(((i>>j) & 1) == 1){
for(int k = 0; k <= n; k++){
dp[i][k] = Math.min(dp[i][k],dp[i^(1<<j)][k]+t[j]);
if(dp[i][k] <= T){
dp[i][k+1] = 0;
}
}
}
}
}
for(int i = 0; i <= n; i++){
if(dp[(1<<n)-1][i] == 0){
System.out.println(i);
return;
}
}
}
public static int upperBound(int[] array, int value) {
int low = 0;
int high = array.length;
int mid;
while( low < high ) {
mid = ((high - low) >>> 1) + low; // (high + low) / 2
if( array[mid] <= value ) {
low = mid + 1;
} else {
high = mid;
}
}
return low;
}
public static final int lowerBound(final int[] arr, final int value) {
int low = 0;
int high = arr.length;
int mid;
while (low < high){
mid = ((high - low) >>> 1) + low; //(low + high) / 2 (オーバーフロー対策)
if (arr[mid] < value) {
low = mid + 1;
} else {
high = mid;
}
}
return low;
}
static class BIT{
int n;
int[] bit;
public BIT(int n){
this.n = n;
bit = new int[n+1];
}
void add(int idx, int val){
for(int i = idx+1; i <= n; i += i&(-i)) bit[i-1] += val;
}
int sum(int idx){
int res = 0;
for(int i = idx+1; i > 0; i -= i&(-i)) res += bit[i-1];
return res;
}
int sum(int begin, int end){
if(begin == 0) return sum(end);
return sum(end)-sum(begin-1);
}
}
static class Pair implements Comparable<Pair>{
int first, second;
Pair(int a, int b){
first = a;
second = b;
}
@Override
public boolean equals(Object o){
if (this == o) return true;
if (!(o instanceof Pair)) return false;
Pair p = (Pair) o;
return first == p.first && second == p.second;
}
@Override
public int compareTo(Pair p){
//return first == p.first ? second - p.second : first - p.first; //firstで昇順にソート
//return (first == p.first ? second - p.second : first - p.first) * -1; //firstで降順にソート
//return second == p.second ? first - p.first : second - p.second;//secondで昇順にソート
return (second == p.second ? first - p.first : second - p.second)*-1;//secondで降順にソート
//return first * 1.0 / second > p.first * 1.0 / p.second ? 1 : -1; // first/secondの昇順にソート
//return first * 1.0 / second < p.first * 1.0 / p.second ? 1 : -1; // first/secondの降順にソート
//return second * 1.0 / first > p.second * 1.0 / p.first ? 1 : -1; // second/firstの昇順にソート
//return second * 1.0 / first < p.second * 1.0 / p.first ? 1 : -1; // second/firstの降順にソート
//return Math.atan2(second, first) > Math.atan2(p.second, p.first) ? 1 : -1; // second/firstの昇順にソート
//return first + second > p.first + p.second ? 1 : -1; //first+secondの昇順にソート
//return first + second < p.first + p.second ? 1 : -1; //first+secondの降順にソート
//return first - second < p.first - p.second ? 1 : -1; //first-secondの降順にソート
//return Math.atan2(second,first) > Math.atan2(p.second, p.first) ? 1 : -1;
}
}
private static class FastScanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
public String next() {
if (!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext()) throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
return (int) nl;
}
public double nextDouble() { return Double.parseDouble(next());}
}
}